Why Website Updates Are Critical

Delaying website updates leaves known, already-fixed security flaws open longer than necessary, which makes it the most common cause of hacking on CMS-based sites like WordPress. An update applied promptly closes a door that automated bots are constantly scanning for across the entire web.

The real problem: every published update reveals the flaw it fixes

When a CMS or plugin publisher releases a security update, they usually document, at least partially, the flaw that's been fixed. That information becomes public almost immediately, which creates a race against the clock: attackers analyze the patch to understand the flaw, then scan the web looking for sites that haven't applied the update yet. The longer a site takes to update after a patch is released, the wider and more widely known its exposure window becomes.

This is a different mechanism from a targeted, sophisticated attack: it isn't "someone with a grudge against your site," but a massive, automated scan that hits every unprotected site indiscriminately. The size or reputation of the site changes nothing.

What needs to be updated regularly

1. The CMS core (WordPress, Shopify, Prestashop, etc.), the foundation the entire site rests on.
2. Plugins and extensions, often the most frequent source of flaws since they're built by third parties with varying levels of rigor.
3. The active theme, especially if it includes interactive features (forms, sliders, page builders).
4. The server-side language version (PHP, for instance), usually managed by the host but sometimes requiring manual activation.
5. Certificates and server security settings, often renewed automatically but worth checking periodically.

Why some people put off updates, and why that's risky

The most common fear is that an update will "break" the site: plugin incompatibilities, unexpected display changes, a feature that stops working. That risk is real, especially on a customized site with many plugins interacting with each other. But putting off the update indefinitely doesn't remove that risk, it just relocates it: the wider the gap between installed versions and available versions grows, the heavier and riskier the eventual all-at-once update becomes, on top of leaving the site exposed in the meantime.

The right approach isn't to avoid updates, it's to apply them in a controlled way.

How to apply an update without risk

1. Confirm a recent backup exists before any update, so you can roll back quickly if something goes wrong.
2. Test the update on a staging environment (a copy of the site separate from the live one), whenever possible.
3. Read the release notes to identify major changes that could affect existing customizations.
4. Apply the update outside the site's peak traffic hours, to limit the impact of any temporary downtime.
5. Check that the site works correctly after the update: overall display, forms, key pages, cart if it's an online store.
6. Document the update applied, to keep a useful history for future troubleshooting.

Prioritizing updates by criticality

Not every update carries the same urgency. A critical security update (an actively exploited flaw, possible unauthorized access) should be handled as a priority, generally within a few days. A minor feature or interface update can wait for a grouped maintenance cycle, monthly for example. Distinguishing between these two levels avoids both unnecessary rushing and neglecting urgent fixes.

What actually happens if updates are ignored for too long

• Known security flaws pile up, exploitable through automated scans without any particular technical skill on the attacker's part.
• Growing incompatibilities between components (theme, plugins, CMS core), making every future update more complex and riskier.
• Gradual slowdown of the site, since some performance fixes never get applied.
• Higher risk of a complete breakdown when the host forces an update (end of support for a PHP version, for example).

What to remember

• Most hacks on CMS sites exploit flaws that are already known and already fixed in versions that simply weren't installed.
• Publishing a security update indirectly reveals the flaw it fixes, which speeds up exploitation attempts against sites that haven't updated.
• A recent backup before every update is the best protection against a problem caused by the operation itself.
• Not all updates carry the same urgency: critical security fixes should be applied quickly, the rest can be grouped.
• Delaying updates doesn't remove the risk, it accumulates it and makes the eventual update heavier.

Frequently asked questions

Can an update break my site? Yes, especially on a site with customizations or several plugins interacting with each other. Which is exactly why it's worth testing on a staging environment before applying it to production, with a recent backup on hand.

How often should a WordPress site be updated? Critical security updates should be applied quickly, within a few days. Minor updates can be grouped on a monthly rhythm with regular checks.

Should I update even if the site works fine? Yes. The absence of visible symptoms doesn't mean the absence of a flaw. Most hacks exploit known flaws that have already been fixed in more recent versions.

Who should handle updates on a professional website? A service provider under a maintenance agreement, or the owner if they have the skills. On a subscription-based site, updates are generally included and handled continuously.

In summary

Updates aren't a minor technical formality, they close the security flaws most exploited across the web. A simple method (backup first, test when possible, prioritize by criticality) lets you apply them regularly without unpleasant surprises. VeryAppi's website subscription plan includes ongoing update management, with no action needed on your part.